search for: logsum

...(z,i=4)+logwsAttack12(z,i=5)+logwsAttack12(z,i=6)) ws37sum <- function (z) (logwsAttack37(z,i=1)+logwsAttack37(z,i=2)+logwsAttack37(z,i=3)+logwsAttack37(z,i=4)+logwsAttack37(z,i=5)+logwsAttack37(z,i=6)+logwsAttack37(z,i=7)+logwsAttack37(z,i=8)) wsLOG <- function (z) (ws12sum(z) + ws37sum(z)) LogSum <- function (z) (-sum(wsLOG(z))) SP <- c(0.16, 0.10, 44, 0.80, 46) out <- nlm (LogSum, p=SP) out For explanation: x1[i], x2[i], m1[i], m2[i], n1[i], n2[i] are given data and z[1:5] are my estimates. My problem is that I have more than one session with diffent number of datas so that I a...

Hello. Does anybody know how to estimate nested logit models in R? I know that the package mlogit does it, but It doesn´t report the logsum parameters. I would like to have the logsum parameters, and the elasticites if possible. Thank you Felipe Parra [[alternative HTML version deleted]]

...Rf_logspace_add() and Rf_logspace_sub()? I don't see one but I may not looking under the right name. Various packages have functions which do that same sort of thing (log(exp(x)+exp(y)) and log(exp(x)-exp(y)) without unnecessary floating point errors). They have names like matrixStats::logSumExp(lx, na.rm=FALSE, ...) (the ... is ignored by the function) sna::logSub(x,y), logSum(x), logMean(x) BTYD::addLogs(loga, logb) and subLogs(loga, logb) Googling for logSumExp (the Python name) indicates that many know this as "LSE" (the "Log-Sum-Exp trick"). I've se...

Full_Name: Morten Welinder Version: 2 OS: Solaris/space/gcc2.95.2 Submission from: (NULL) (65.213.85.217) I changed src/nmath/standalone/test.c to read: --------------------------------------------------------------------------------- #define MATHLIB_STANDALONE 1 #include <Rmath.h> #include <stdio.h> int main() { double x; for (x = 99990; x <= 100009; x++) printf

...--- a/src/opus_multistream_encoder.c +++ b/src/opus_multistream_encoder.c @@ -71,6 +71,7 @@ typedef void (*opus_copy_channel_in_func)( struct OpusMSEncoder { ChannelLayout layout; + int arch; int lfe_stream; int application; int variable_duration; @@ -218,7 +219,7 @@ opus_val16 logSum(opus_val16 a, opus_val16 b) #endif void surround_analysis(const CELTMode *celt_mode, const void *pcm, opus_val16 *bandLogE, opus_val32 *mem, opus_val32 *preemph_mem, - int len, int overlap, int channels, int rate, opus_copy_channel_in_func copy_channel_in + int len, int overlap, int c...

...--- a/src/opus_multistream_encoder.c +++ b/src/opus_multistream_encoder.c @@ -71,6 +71,7 @@ typedef void (*opus_copy_channel_in_func)( struct OpusMSEncoder { ChannelLayout layout; + int arch; int lfe_stream; int application; int variable_duration; @@ -218,7 +219,7 @@ opus_val16 logSum(opus_val16 a, opus_val16 b) #endif void surround_analysis(const CELTMode *celt_mode, const void *pcm, opus_val16 *bandLogE, opus_val32 *mem, opus_val32 *preemph_mem, - int len, int overlap, int channels, int rate, opus_copy_channel_in_func copy_channel_in + int len, int overlap, int c...

...--- a/src/opus_multistream_encoder.c +++ b/src/opus_multistream_encoder.c @@ -71,6 +71,7 @@ typedef void (*opus_copy_channel_in_func)( struct OpusMSEncoder { ChannelLayout layout; + int arch; int lfe_stream; int application; int variable_duration; @@ -218,7 +219,7 @@ opus_val16 logSum(opus_val16 a, opus_val16 b) #endif void surround_analysis(const CELTMode *celt_mode, const void *pcm, opus_val16 *bandLogE, opus_val32 *mem, opus_val32 *preemph_mem, - int len, int overlap, int channels, int rate, opus_copy_channel_in_func copy_channel_in + int len, int overlap, int c...

Changes from RFC PATCH v3 - Just rebased on tip - For all else, please see notes from RFC PATCH v3 at http://lists.xiph.org/pipermail/opus/2015-March/002902.html - latest wip opus tree/branch https://git.linaro.org/people/viswanath.puttagunta/Ne10.git branch: rfcv4_final_fft_ne10 Viswanath Puttagunta (1): armv7(float): Optimize encode usecase using NE10 library Makefile.am

Changes from RFC PATCH v1: - passing arch parameter explicitly - reduced stack usage by ~3.5K by using scaled NE10 fft version - moved all optimization array functions to arm_celt_map.c - Other cleanups pointed out by Timothy Phil, As you mentioned earlier, could you please address all compile and linker errors/warnings coming out of Ne10 library? You can find my working Ne10 repo at [1] You

Changes from RFC PATCH v2 - fixed compile issue when just compiling for --enable-intrinsics for ARMv7 without NE10 - Notes for NE10: - All compile/link warnings are now in upstream NE10 - Only patch pending upstream in NE10 is the one that needs to add -funsafe-math-optimizations for ARMv7 targets. - Phil Wang @ ARM is working on getting this fixed. - Note that even without

Hi All, Since I continue to base my work on top of Jonathan's patch, and my previous Ne10 fft/ifft/mdct_forward/backward patches, I thought it would be better to just post all new patches as a patch series. Please let me know if anyone disagrees with this approach. You can see wip branch of all latest patches at https://git.linaro.org/people/viswanath.puttagunta/opus.git Branch:

Hi Timothy, As I mentioned earlier [1], I now fixed compile issues with fixed point and resubmitting the patch. I also have new patch that does intrinsics optimizations for celt_pitch_xcorr targetting aarch64. You can find my latest work-in-progress branch at [2] For reference, you can use the Ne10 pre-built libraries at [3] Note that I am working with Phil at ARM to get my patch at [4]

Hi All, As per Timothy's suggestion, disabling mdct_forward for fixed point. Only effects armv7,armv8: Extend fixed fft NE10 optimizations to mdct Rest of patches are same as in [1] For reference, latest wip code for opus is at [2] Still working with NE10 team at ARM to get corner cases of mdct_forward. Will update with another patch when issue in NE10 gets fixed. Regards, Vish [1]:

Hi All, Changes from RFC v2 [1] armv7,armv8: Extend fixed fft NE10 optimizations to mdct - Overflow issue fixed by Phil at ARM. Ne10 wip at [2]. Should be upstream soon. - So, re-enabled using fixed fft for mdct_forward which was disabled in RFCv2 armv7,armv8: Optimize fixed point fft using NE10 library - Thanks to Jonathan Lennox, fixed some build fixes on iOS and some copy-paste errors Rest

Hello Timothy / Jean-Marc / opus-dev, This patch series is follow up on work I posted on [1]. In addition to what was posted on [1], this patch series mainly integrates Fixed point FFT implementations in NE10 library into opus. You can view my opus wip code at [2]. Note that while I found some issues both with the NE10 library(fixed fft) and with Linaro toolchain (armv8 intrinsics), the work